Package | mx.graphics |
Class | public class RadialGradient |
Inheritance | RadialGradient GradientBase EventDispatcher Object |
Implements | IFill |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
entries
Array
to define the colors that make up the gradient fill.
In MXML, you define a RadialGradient by adding a series of GradientEntry objects, as the following example shows:
<mx:fill> <mx:RadialGradient> <mx:entries> <mx:GradientEntry color="0xC5C551" ratio="0.00" alpha="0.5"/> <mx:GradientEntry color="0xFEFE24" ratio="0.33" alpha="0.5"/> <mx:GradientEntry color="0xECEC21" ratio="0.66" alpha="0.5"/> </mx:entries> </mx:RadialGradient> </mx:fill>
You can also define a RadialGradient as a fill for any graphic element in ActionScript, as the following example shows:
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="init()"> <mx:Script> import flash.display.Graphics; import flash.geom.Rectangle; import mx.graphics.GradientEntry; import mx.graphics.RadialGradient; private function init():void { var w:Number = 200; var h:Number = 200; var s:Sprite = new Sprite(); // Add the new Sprite to the display list. rawChildren.addChild(s); var g:Graphics = s.graphics; g.lineStyle(1, 0x33CCFF, 1.0); var fill:RadialGradient = new RadialGradient(); var g1:GradientEntry = new GradientEntry(0xFFCC66, 0.00, 0.5); var g2:GradientEntry = new GradientEntry(0x000000, 0.33, 0.5); var g3:GradientEntry = new GradientEntry(0x99FF33, 0.66, 0.5); fill.entries = [ g1, g2, g3 ]; // Set focal point to upper left corner. fill.angle = 45; fill.focalPointRatio = -0.8; // Draw a box and fill it with the RadialGradient. g.moveTo(0, 0); fill.begin(g,new Rectangle(0, 0, w, h)); g.lineTo(w, 0); g.lineTo(w, h); g.lineTo(0, h); g.lineTo(0, 0); fill.end(g); } </mx:Script> </mx:Application>MXML SyntaxHide MXML Syntax
The <mx:RadialGradient>
tag
inherits all the tag attributes of its superclass,
and adds the following tag attributes:
<mx:RadialGradient Properties angle="0" focalPointRatio="0" />
Default MXML Propertyentries
See also
mx.graphics.LinearGradient
mx.graphics.IFill
Using gradient fills with chart controls
Using MXML graphics
Fills
Property | Defined By | ||
---|---|---|---|
angle : Number Deprecated: Please Use rotation
By default, the LinearGradientStroke defines a transition
from left to right across the control. | GradientBase | ||
constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | ||
entries : Array
An Array of GradientEntry objects
defining the fill patterns for the gradient fill. | GradientBase | ||
focalPointRatio : Number
Sets the location of the start of the radial fill. | RadialGradient | ||
interpolationMethod : String
A value from the InterpolationMethod class
that specifies which interpolation method to use. | GradientBase | ||
matrix : Matrix
An array of values used for matrix transformation. | GradientBase | ||
prototype : Object [static]
A reference to the prototype object of a class or function object. | Object | ||
rotation : Number
By default, the LinearGradientStroke defines a transition
from left to right across the control. | GradientBase | ||
scaleX : Number
The horizontal scale of the gradient transform, which defines the width of the (unrotated) gradient
| RadialGradient | ||
scaleY : Number
The vertical scale of the gradient transform, which defines the height of the (unrotated) gradient
| RadialGradient | ||
spreadMethod : String
A value from the SpreadMethod class
that specifies which spread method to use. | GradientBase | ||
x : Number
The distance by which to translate each point along the x axis. | GradientBase | ||
y : Number
The distance by which to translate each point along the y axis. | GradientBase |
Method | Defined By | ||
---|---|---|---|
Constructor. | RadialGradient | ||
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | ||
Starts the fill. | RadialGradient | ||
Dispatches an event into the event flow. | EventDispatcher | ||
Ends the fill. | RadialGradient | ||
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | ||
Indicates whether an object has a specified property defined. | Object | ||
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | ||
Indicates whether the specified property exists and is enumerable. | Object | ||
Removes a listener from the EventDispatcher object. | EventDispatcher | ||
Sets the availability of a dynamic property for loop operations. | Object | ||
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | ||
Returns the string representation of the specified object. | Object | ||
Returns the primitive value of the specified object. | Object | ||
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher |
focalPointRatio | property |
focalPointRatio:Number
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Sets the location of the start of the radial fill.
Valid values are from -1.0
to 1.0
.
A value of -1.0
sets the focal point
(or, start of the gradient fill)
on the left of the bounding Rectangle.
A value of 1.0
sets the focal point
on the right of the bounding Rectangle.
If you use this property in conjunction
with the angle
property,
this value specifies the degree of distance
from the center that the focal point occurs.
For example, with an angle of 45
and focalPointRatio
of 0.25,
the focal point is slightly lower and to the right of center.
If you set focalPointRatio
to 0
,
the focal point is in the middle of the bounding Rectangle.
focalPointRatio
to 1
,
the focal point is all the way to the bottom right corner
of the bounding Rectangle.
The default value is 0.0.
This property can be used as the source for data binding. When this property is modified, it dispatches the propertyChange
event.
Implementation
public function get focalPointRatio():Number
public function set focalPointRatio(value:Number):void
scaleX | property |
scaleX:Number
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
The horizontal scale of the gradient transform, which defines the width of the (unrotated) gradient
This property can be used as the source for data binding. When this property is modified, it dispatches the propertyChange
event.
Implementation
public function get scaleX():Number
public function set scaleX(value:Number):void
scaleY | property |
scaleY:Number
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
The vertical scale of the gradient transform, which defines the height of the (unrotated) gradient
This property can be used as the source for data binding. When this property is modified, it dispatches the propertyChange
event.
Implementation
public function get scaleY():Number
public function set scaleY(value:Number):void
RadialGradient | () | Constructor |
public function RadialGradient()
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Constructor.
begin | () | method |
public function begin(target:Graphics, targetBounds:Rectangle, targetOrigin:Point):void
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Starts the fill.
Parameters
target:Graphics — The target Graphics object that is being filled.
| |
targetBounds:Rectangle — The Rectangle object that defines the size of the fill
inside the target .
If the dimensions of the Rectangle are larger than the dimensions
of the target , the fill is clipped.
If the dimensions of the Rectangle are smaller than the dimensions
of the target , the fill expands to fill the entire
target .
| |
targetOrigin:Point — The Point that defines the origin (0,0) of the shape in the
coordinate system of target.
|
end | () | method |
public function end(target:Graphics):void
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Ends the fill.
Parameters
target:Graphics — The Graphics object that is being filled.
|
Thu May 20 2010, 02:19 AM -07:00